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ACI-ASTM CT15C Steel vs. EN AC-46500 Aluminum

ACI-ASTM CT15C steel belongs to the iron alloys classification, while EN AC-46500 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is EN AC-46500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
91
Elastic (Young's, Tensile) Modulus, GPa 200
74
Elongation at Break, % 23
1.0
Fatigue Strength, MPa 130
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
28
Tensile Strength: Ultimate (UTS), MPa 500
270
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 310
520
Maximum Temperature: Mechanical, °C 1080
180
Melting Completion (Liquidus), °C 1410
610
Melting Onset (Solidus), °C 1360
520
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 12
100
Thermal Expansion, µm/m-K 16
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
26
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
81

Otherwise Unclassified Properties

Base Metal Price, % relative 36
10
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 6.1
7.6
Embodied Energy, MJ/kg 88
140
Embodied Water, L/kg 190
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 93
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
32
Thermal Diffusivity, mm2/s 3.2
41
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 0
77.9 to 90
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0 to 0.15
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 40.3 to 49.2
0 to 1.3
Lead (Pb), % 0
0 to 0.35
Magnesium (Mg), % 0
0.050 to 0.55
Manganese (Mn), % 0.15 to 1.5
0 to 0.55
Nickel (Ni), % 31 to 34
0 to 0.55
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 1.5
8.0 to 11
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.25